project introduction to logistics and supply chain management ho chi minh mausoleum

there are also assembled models of famous landscapes and places in Vietnam.Ho Chi Minh Mausoleum, also known as Uncle Ho''''s mausoleum, is the place where the body of President Ho Chi Minh

International University

HOCHIMINH CITY INTERNATIONAL UNIVERSITY

SCHOOL OF INDUSTRIAL ENGINEERING & MANAGEMENT

Ho Chi Minh City, Vietnam 03/2022

Throughout the course, Group 20 had a great deal of assistance and support, which helped us overcome all obstacles and complete this challenging but rewarding experience

First of all, Group 20 would like to express our endless thanks and gratefulness to all those who provided me with the opportunity to complete this project A special gratitude Group 20 gives to our supervisor, Dr Phan Nguyen Ky Phuc, whose contribution in stimulating suggestions and encouragement, helped us to

coordinate our project, especially in creating the product The teacher's advice and comments had significantly enriched and improved our work

Furthermore, Group 20 would also like to express our gratitude for all the support we received from our Teaching Assistants, Mr Nguyen Truong Nguyen, Mr Nguyen Van Hai, and Mr Trung Le,for their patience and guidance through each stage of the process whenever we ran into problems Without their motivation and instructions, the project would have been impossible to accomplish effectively

CHAPTER 1: INTRODUCTION

1.1 Introduction

Assembly model toys are one of the types of toys that appeal to people of all ages, especially children around the world Nowadays, the majority of children prefer video games on their smartphones to traditional toys As a result, continuing to allow children to spend too much time on online games not only has detrimental consequences on their health but also negatively affects children’s intellectual development The Assembly model is a great source of entertainment for both adults and children Furthermore, it can provide a terrific way for people to develop skills, such as maintaining focus, encouraging concentration abilities, building creativity, and increasing hand dexterity Besides the assembled models ofanimals, cars, animations there are also assembled models of famous landscapes and places in Vietnam.

Ho Chi Minh Mausoleum, also known as Uncle Ho's mausoleum, is the place where the body of President Ho Chi Minh remained after passing away It is a symbol of gratitude and respect of Vietnamese people for president Ho Chi Minh The construction of the Ho Chi Minh Mausoleum was officially started on

February 2, 1973, at Ba Dinh Square, Hanoi The mausoleum was inaugurated on August 29, 1975 Being one of the most important historical attractions of Hanoi, Ho Chi Minh Mausoleum is where people honor, show appreciation and express admiration toward Ho Chi Minh And the model of Ho Chi Minh Mausoleum - Model of Uncle Ho's Mausoleum is a miniature copy of Ho Chi Minh Mausoleum Using 3D graphics technology, along with modern Laser Cutting technology on plywood material Therefore, the Ho Chi Minh Mausoleum Model - Uncle Ho's Mausoleum model is not only appreciated for its durability, and high aesthetics but also is a useful entertainment toy for those who love assembled models At the

same time, this is also a product bearing the great symbol of the Vietnamese nation.The standard size of the model is 300x200x150 mm with 66 pieces Models of this size usually cost from 100,000 VND to 200,000 VND This price is suitable for themajority of customers' needs so they are very popular

1.3 System Requirements:

1.3.1 LASER CUTTING MACHINE – 1 HEAD 100W

Working area X1600 * Y1000mm

Power source 100W

Cutting speed 24,000mm / min

Engraving speed 40,000mm / min

Error rate <0.01mm

Smallest character that

can be engraved Upper case 2*2mm, Latin letter 1*1mm

Cutting depth 0 ~ 30mm (depends on material)

Resolution 0.025mm (1200dpi)

Power supply AC220V ± 10% 50Hz

Supported formats BMP, JPEG, GIF, TIEF, PCX, PLT, AI,TGA, DXP

1.3.2 LaserCad

This is the most professional and modern software, including 3 main versions commonly used: Lasercad software (generic version), version based on CorelDraw,and Autocad-based version

Some outstanding advantages of Lasercad software:

- Eye-catching interface, easy to use for beginners.

- Compatibility with various files such as PLT, DXF, AL, BMP…

- Connect to USB or internet network system.- Real-time tracking.

- Allows adjusting the size, and depth of the product

1.4 Scope and Limitation:

1.4.1 Scope:

Our team’s product – the 3D model of Ho Chi Minh Mausoleum is aesthetically pleasing It can be used as a home, office, or study desk decoration Our product is fitted with a pencil pot, which is useful to organize pens and other writing tools In the future, it will be more accessible and can be found in many supermarkets or bookstores

1.4.2: Limitations:

Our team’s product – the 3D model of Ho Chi Minh Mausoleum is made of wood

As a result, it is fragile if the shipper was not careful when transporting It is also perishable if it is placed in a moist environment

It takes time to assemble It can be an intricate model kit for beginners The material used to make a 3D model of Ho Chi Minh Mausoleum is wood

Therefore, it is easy to be damaged if left in a humid place or with a lot of insects and easily broken if not handled with care.

CHAPTER 2: SYSTEM DESCRIPTION2.1 Conceptual Design

Phase 1: Design the puzzle by Laser CAD

Phase 2: Cutting wooden boards with a laser machine:

Cutting laser the wooden boards 3 mm thick into 60 pieces to create the model

Locate the joints so that the pieces can be attached easily

Phase 3: Create the pen holder and decorate

2.1.4 Outputs:

- The model shows the most typical features of Uncle Ho's mausoleum - Easy to assemble and disassemble

- The durability is acceptable

- Optimization of lead time and material cost

- The product can be used for many purposes ( ornament, souvenir, pencil holder,…)

Using the Laser Cutting Machine

Buying

Preparing materialLASERCAD

Cutting the model of

Uncle Ho's mausoleum

Cutting the Pencil

Pot Ho's

Report

2.1.2 Physical model

2.3 Operation Description

Step 1: Choose a design

- Refer to photographs of famous locations in Viet Nam.- Ho Chi Minh Mausoleum was suggested as a model:

This is a unique decoration Moreover, it is also a symbolic gift, commemorating the great president of Vietnamese country as a whole.

Step 2: Survey of consumer demand

Create a survey form about “ The demand of Ho Chi Minh Mausoleum designed by laser machine” using Google form for products.

assembled models.

❖ Decorative elements

→ Most people desire to use the model set for something else (pen holder, decorative light,.) besides using it as a decoration

Based onthe pictures taken around the Ho Chi Minh mausoleum refer to the internet, simulate the Ho Chi Minh Mausoleum with 3D images by SketchUp.

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harmonious, similar to the ratio between the sides of the original Mausoleum.

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According to the survey, people prefer wood to other materials

Learn about the different varieties of wood used for laser machines, including MDF and plywood.

MDF stands for medium density fiberboard MDF is ideal for both cutting and engraving because of its ability to create depth.

MDF is hard and affordable

The cut is clean and flawless, with a tendency to not warp.

It is sensitive to moisture.It is heavy and thick.Complicated to work with.

→ As a result, MDF is more suitable for large designs Designs with a lot of minute details are more prone to breaking or cracking.

Lots of debris when machining.

→ Plywood is appropriate for marking and laser engraving because of its slight and smooth appearance By virtual of the light material, it is also used for assembly blueprints.

Based on this assessment, we decided to choose Plywood to create our product.Plywood is light and easy to cut minute details Therefore, it is suitable to use for assembled models.

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into wooden boards.

5.1 Separate blocks to draw details under 2D images

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5.2.1: Draw and cut puzzle pieces without joints by using Laser Cad

After separating the puzzle pieces on paper, sketch each detail on laser CAD software The design in the laser CAD program is shown below:

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After that, using a laser machine to cut the drawn details on 5 wooden boards with dimensions (length x width x thickness) 350x250x3 mm

With the layer parameters:

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❖ Results: the sizes of the puzzle pieces matched each other

❖ Errors:

Setting the laser power too high results in scorched woodcuts The cut piece of wood is not beautiful.

→ Need to adjust the power

The time to cut was too slow The total time is about 55 minutes → Find ways to optimize time

5.2.2: Based on the cut details, design joints for the puzzle piece

By manual measurement, divide the lengths of the pieces into equal intervals Thengive the right number of joints to each puzzle piece, making sure the pieces can stand firmly on the ground.

After completing the joints, continue to erect the puzzle pieces on wooden boards to locate the holes, make sure the joints are in place with the holes, and the details are firmly connected.

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Trial cutting with a laser machine:

❖ Error: The joints and holes are still out of place

The cut hole is larger than the drawing due to the cross-section of the laser.

Direct test cutting on wood is quite expensive Because deciding the position of thehole to fit the joints is quite complicated It requires testing and adjustment many times However, the cost of wood is quite expensive.

⇨ Switc

Based on the errors that occurred in thefirst test, we adjusted the size of the hole and moved the position of the holes to fit the coupling.

Continue to try cutting on Foamex and then testing.

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 There are still some flaws in the placementof the edges of the puzzle:

Some holes are still not in the right position and have the wrong size.

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After making sure that the pieces could be joined together by the correct placementof the holes and joints, we proceeded to cut directly on the large wooden board Its dimension (length x width x thickness) is 600x400x3 (mm).

Fixed the mistakes that happened in the previous cuts: lower the original power so that the wood is less scorched.

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Step 5: Add applications to the model.

Based on the survey, most consumers want more decorative details and

applications for the model So, we designed an extra pencil pot for the model with LED lights around it Thus, this is not only an entertaining toy, but then it is also used as a decoration and can hold pens on the desk or study table.

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- Step 1: Seperate each component from the frame and put it in the proper location.- Step 2: Attach the details that make up the pen holder with candle glue.

- Step 3: Decorate with led string lights.

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CHAPTER 3: CONCLUSIONS 3.1 Advantages:

- Be suitable for people of all ages - Have entertainment function

- Be a tool to cultivate the mind and improve creativity - Promote manual dexterity, and boost concentration - Have an affordable cost

- Be compact to carry easily

- Can be used as a pencil , lamp, …

3.2 Disadvantages:

The 3D model of Ho Chi Minh Mausoleum takes up space and it may be covered in dust if it is not used frequently In addition, a set contains some intricate details These details are safe for children but easy to misplace

3.3 Application:

Ho Chi Minh Mausoleum is a special symbol of practical value for educating each Vietnamese citizen about morality and lifestyle The 3D model of the Ho Chi MinhMausoleum is a meaningful birthday or anniversary gift It is suitable for people of all ages and can be used not only for amusement but also for educational purposes Another application of the 3D model of Ho Chi Minh Mausoleum is to decorate desks and study or office spaces Our model is also upgraded with a pencil pot, which is convenient to organize pens and helps users to optimize their workplace.

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3 7 lợi ích tuyệt vời mà bộ đồ chơi ghép hình mang lại | Nguyễn Thị Ngọc Uyên | 01 July 2021

https://websosanh.vn/tin-tuc/7-loi-ich-tuyet-voi-ma-bo-do-choi-4 Getting Started in SketchUp | Help.SketchUp | 2021

5 LaserCad

https://vietducmetal.vn/huong-dan-su-dung-phan-mem-cat-laser-27